In pix #1 I think I see jail bars. In the last pix it
has retrace lines. IIRC the big filter can at the rear
is two section. One is the power supply filter, the other
is for the 200V. The 200V part is probably bad. Its
typically from 5mfd -22mfd. If its OK you can
turn down the G-2 on the CRT socket to get rid of
the retrace.
73 Zeno